Anoles need UVB lighting, which I'm sure you can't provide for an entire room (they're not going to know the difference to bask under that light or any other) and isn't provided sufficiently through indirect light or sunlight through a window. Giving anoles run of the house probably wouldn't work.
10-gallons is cramped for ONE anole! I wouldn't keep three in less than a 30-, although a 40- is ideal. You should not mix species except for rare exceptions, but that's best left to experts, not the average hobbyist. Also, remember you can go to Wal-Mart of something of the sort and pick up a 20-gallon or larger "sweaterbox" for a few dollars including top, much cheaper than an aquarium. There is no excuse for overcrowding animals like that, and there is no reason to keep a pet in compromised conditions. If you do go for the sweaterbox idea, remember you have to open A LOT of holes for proper ventilation, or you can cut out a large section on the top and replace it with mesh or screen. You can also build a cage out of mesh-like materials.
Remember, petstore employees don't usually know the right advice to give you, or neglect in giving you precautions just to make a sale. They sell animals, they don't usually care much for them. Ask an exotic vet or an expert for advice, not a petstore.
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Got hips like Cinderella / Must be having a good shame / Talking sweet about nothing / Cookie I think you're Tame 